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A Method for the Positioning and Tracking of Small Moving Particles
Author(s) -
Rees Neil V.,
Matthews Sinéad M.,
Yunus Kamran,
Fisher Adrian C.,
Compton Richard G.
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200805428
Subject(s) - chronoamperometry , tracking (education) , micrometer , scale (ratio) , motion (physics) , materials science , image resolution , nanotechnology , electrode , computer science , computer vision , electrochemistry , optics , physics , cyclic voltammetry , psychology , pedagogy , quantum mechanics
On the move : Electrochemistry has been used to detect and monitor the motion of a single 330 μm sphere in both time and space (see picture). The motion was recorded simultaneously by video and chronoamperometry, which showed an excellent correlation. The ability to fabricate electrode arrays capable of spatial resolution at the sub‐micrometer scale opens the possibility of using this technique to monitor considerably smaller particles.